金属切削切屑形成机理的研究  

Study of the Chip Formation Mechanism of Metal Machining

作　　者：顾瑄[1] 

机构地区：[1]天津交通职业学院,天津300110

出　　处：《现代工业经济和信息化》2016年第10期52-54,共3页Modern Industrial Economy and Informationization

摘　　要：应用MARC有限元软件并采用二维热力耦合的弹塑性大变形与接触非线性有限元法,真实模拟了金属切削切屑形成的过程,数值计算结果给出了工件三个变形区在不同的切削阶段的温度场、应力场与应变场分布。根据稳定切削阶段的应力场得出了刀具切削力与工件切削后的残余应力分布。研究成果可以为金属切削提供理论依据和技术支持。The numerical simulation of the chip forming process of metal machining was conducted by nonlinear finite element method The distribution of the temperature, stress and strain of the whole chip forming process were obtained in the three deformation zone. According to the numerical calculation results, the cutting force and residual stress distribution were obtained. This paper will provide both theoretical and technical help for metal machining.

关 键 词：切削 形成机理 热力耦合 弹塑性大变形 接触非线性 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]